10 Best Water Guru Reviews of 2025

Main Highlights

• 
  Exclusive Compatibility The WaterGuru SENSE S2 works exclusively with two cassette options: the C5 Cassette (included with purchase) and the C2 Cassette. The C5 Cassette lasts 1 month with daily measurements, while the C2 Cassette lasts 2 months with daily measurements.
• 
  Fits Most Skimmers Adapters Available if Needed! WaterGuru SENSE S2 fits round skimmers between 8.25 and 9.4 without an adapter. For 10 square skimmers, use the WaterGuru Square Adapter. For round skimmers larger than 9.4, use the WaterGuru Circle Adapter. Both adapters are sold separately.
• 
  Easy Installation Drop the device into your skimmer for fast setup. No test strips required. Step-by-step guides, FAQs, and troubleshooting are available in the WaterGuru App.
• 
  Wi-Fi Setup Guidance Connects to your home Wi-Fi for automatic daily readings. For best performance, ensure the device is within 30 ft of your router or mesh node. If you experience connection issues, go to Your Orders, select your WaterGuru SENSE S2, and choose Get Product Support for assistance.
• 
  Manufacturer Support Program Every customer has direct access to our US-based support team for help with setup, connectivity, or readings. For support, go to to Your Orders, select your WaterGuru SENSE S2, and choose Get Product Support for assistance.
• 
  Reliable Pool & Spa Testing Measures five key water parameters daily: pH, free chlorine, cyanuric acid (CYA), total alkalinity, and hardness. Helps maintain balanced, clear water for safe swimming.

Main Highlights

Main Highlights

Main Highlights

Main Highlights

Main Highlights

Main Highlights

Main Highlights

Main Highlights

Main Highlights